Ratio and proportion
convert to inproper fracton first
1 and 1/2=1+1/2=2/2+1/2=3/2
3 and 1/2=3+1/2=6/2+1/2=7/2
3/2dozen=7/2cups
times 2 both sides
3dozen=7cups
divide by 3 both sides
1dozen=7/3cups=2 and 1/3 cup
Answer:
131
Step-by-step explanation:
Using proportion,
If Out of 550 calculators = 6 are defective,
Then out of 12000 calculators = ? are defective

= 21.8 * 6
= 130.8 ≈ 131
∴ Approximately 131 calculators are defective
Answer:
y = 3x - 5
Step-by-step explanation:
Slope m = 3
Using (1,-2)
Slope-intercept: y = mx + b
-2 = 3(1) + b
-2 = 3 + b
b = -5
then y = 3x - 5
Answer: Option C.
Step-by-step explanation:
Let as consider the complete question is same as question shown in the below figure.
In the figure m║n.
If a transversal line intersect two parallel lines then same sided interior angles are supplementary angles and their sum is 180 degrees.


Divide both sides by 4.


The value of x is 45 degrees.
Therefore, the correct option is C.
Midpoint formula:

1. Point 1 (-2,2)
Point 2 (4,-1)
Midpoint: (-2+4/2, 2-1/2)
(2/2, 1/2)
(1, 1/2)
2. Point 1 (-3,-5)
Point 2 (2, 5)
Midpoint: (-3+2/2, -5+5/2)
(-1/2, 0)
Distance between two points formula:

1. Point 1 (-2, 2)
Point 2 (4, -1)





2. Point 1 (1, 2)
Point 2 (4, 7)



